Razor-stropping device.



J. HEISSENBERGER. RAZOR STROPPING DEVICE. APPLICATION FILED 00T.15, 1908.

Patented 0st. 5, 1909.

WITNESSES 33. i; mk

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UNITED STATES PATENT OFFICE.

roan HEI'ssENBERGEn, on NEW YORK, N. Y.,' Assrernon TO FRANK A. srmnur AND 1 CHARLES H. srmnur, on NEW YORK, N. Y.

RAZdR-STROPPING DEVICE.

, Specification of Letters Patent; Application filed October 15, 1908. Serial No. 457,824.

-'To all whom it may concern:

Be it known that I, JOHN Hmssnnianncnn,

a citizen of theUnited States, residing in the borough of Bronx, city of New York, in the county of New York and State of New York,

have invented certain new and useful Improvements in Razor-Stropping Devices, of

which the following is. a specification.

cutting edge, and it has often been the prac tice to make this application by hand. I 15,

It is well known, that it is desirable to occasionally apply a razor blade to a strap, of certain texture, with a reciprocating motion for the purpose of maintaining a keen I have devised certain improvements in apparatus which allows, by very-simple means,-the most unskilled to treat a razor blade, or a number of razor blades, and ob- 2.5 razor blade, to the strap, at any -but the gtain very' satisfactory results.

It will be noticed, that in the apparatus which I have produced, great care has been taken to give the strap the proper movement relative to the razor blade, and to obviate all possibility of cutting, or otherwise injuring the strap by accidental presentation of the proper angle.

The following is what I consider the best means for carrylng out this invention;

The accompanying drawings form a part of this specification.

Figure 1 is a slde elevation, or .end view.

Fig. '2 shows a front'elevation of the completed device the strap omitted, for the pur-v A Tothe center of the top I have attacheda book A, use'fulin supporting ,the device, when n use, on any convenient hook or nail. B 1s a bar of hard rubber, or metals'emicylindrical in cross'sectiom'the top face, B

. is nicely rounded.- 'It .is provided with a- ,shaft B which is inserted in holes provided for it in the sides 'of A, A of the frame A.

' This bar is also provided with a crank, B and crank-pin B G is the blade holder, it is formed of metal bent so asto produce projecting blades '0 nearly. together' at the base. This blade holder C is permanently attached to a bar J,

Patented Oct. 5, 1909.

G which are wide at the top and brought I which has also bearin s in the side frames A A Attached to t is bar J is a second crank G which carries a crank pin C and performs useful functions, and will be more fully described farther on.

On the uppermost side of the-bar J, I haveattached a spring F,-wh-ich may be of any of the well known shapes, butI prefer" to I make it a flat spring, it is attached to the ,bar at one-point only, its center. The outer ends of this spring are loosely held bythe' block s A A, and work in conjunction with the spring 'F and bar J, to keep the blade holder always in a perfectly vertical position.

The crankpins B and C are connected by a link G slotted at either end for the reception of the pinsB and C. 'lhis link is pivoted in its center and serves to transmit to the blade holder U, but in the opposite direction the semirotarymotio'n that is produced in the crossbar B by the action of the strap on the upper face of this crossbar when it is pulled back and forward by the operator.

Rollers E of hard rubber, or other suitable material are provided with shafts E and are rotatably mounted in bearing in the ends A A of the frame .A. The rods H are placed in the lower ends of the sides A A,

and carry rollers H, ofany suitable ma,- t'erial. They are shown as riveted firmly into place and perform the double function of supports for the rollers, under which the strap passes, and stout braces for the lower ends of the side pieces A A.

- Fig. 4 shows in detail a part J, adapted to be adjustably fitted in the blade holder C. It protrudes from between the two sides of the blade holder, and is provided with ablock J which slides in the hole in the side frame A through which the 'razor blade passes. This block has a slot in its vertical center,-and carries ascrew. J 2 withfreedom formotiori', Two links J", J loosely connect the base with .a flat plate -.J. Thisflat plate J has one end-bent sharply 'downward .so as to form 'theZlip J, A screw I threaded hole centrally located in this lip receives the screw J A' pin J is'tightly driven into a hole provided for it, near the end .of the screw J after its passa e through the lip J 6 of the flat plate J. I FVhen it is desired to insert a razor blade, of the ordiiiary width in the blade holder C, the screw J is withdrawn to its fullest extent, this depresses the flat plate J by folding the links J and J. A spring J which is 'between the base and the flat plate J of the adjustable piece J, tends to keep the plate J 5 in its uppermost position with the links J? .and J extended to their full length, and it is obvious that if the screw J 2 is releasedeven to a smallextent, the fiat plate J will be raised-to a corresponding extent.

;In describing this apparatus, I have referred to a strap which is shown at K, it may be the ordinary long approvedrazor strap, somewhat lengthened for the greater convenience 111 handling. It 15 inserted in thls device by being passed over the crossbar B with its smoothest face, theoperating face resting upon the uppermost side of the bar.

Tlieends are then passed down, one on each side of the blade holder, then they are passed inside of the rubber rollers E, and together are inserted between the rods H. .The long ends, which project are now convenient to be grasped one in either hand. A razor blade is inserted through the aperture into has been provided for it in the sides A A of the frame. Whenone end of the strap is tightened the blade is moved toward and against that side of the strap, and thetightening causes the bar D to be puslmd against -the opposite side of the strap, which forces that side of the strap out of straight line from the rollers E to the roller H In this movement the bar D takes up whatever slack there may be in the strap by forming a short bond between the rollers'E and the-rollers H This bending tends to retard the up- I it to pull more tightly'over the lead'frictioi'iv ward movement of the strap and causes bar B and it will more surely rotate the frictionbar tothe allowable extent, which barwill transmit this positive motion to the blade holder and cans the blade to bear with a stronger pressure on the strap. When the other end of the strap is pulled with a corresponding relaxation of the. first end,v the bar D is-at once forced in the op osite. direction and forces the now loosened slde'of the strap out and away from the razor edge before that side of thestra commences its upward movement. Itwill e seen that this quick movement of the strap horizontally and before it commences its upward movement obviates the possibility of cutting or chipping the'strap, when the direction of the .advantages of this invention.

of lead if desired.

scope of the appended claims without departing from the principle or sacrificing the The sides of the blade holder C may be made narrower if it is found desirable. The adjusting partJ may be entirely dispensed with for some classes of work. The rod D may be also.

I claim as my invention:

LA razor stropping device, havin'g a.

frame, a friction bar pivoted in such frame,

a blade holder pivoted in such frame, and

loosely connected with said friction bar, in combination with a link connected adjusting device within said blade holder and thumb-screw and block for operatin said adjusting device arranged to serve as herein specified.

2. A razor stropping device having aframe, a frictionbar pivoted in such frame, a blade holder capable of rocking motions loosely connected with said friction bar, and a strap, in combination with a movable-bar D, loosely mounted between the two parts of said strap, and arranged to maintainthat part of the strap adjacent to the .blade holder, in a flat condition.

A razor stropping device, having a frame, a friction bar located in'such frame, a crank pin attached to said friction bar, a. blade holder, and a crank and crank in carriedby said blade holder, a vertical hnk slotted and centrally pivoted, arranged to transmit motion from the friction bar to the blade holder.

4. A razor stropping device, having a. frame, a friction bar located in such frame, a crank pin attached to said frictionbar, ablade holder, and a crank and crank in carriedby said blade holder, a vertical link slotted and centrally pivoted, arran' ed to transmit motion from the friction at to the blade holder, and a strap, in combination with a bar D mounted between the two inner sides of said strap and moved thereby.

5. razor stropping device having a frame, a friction bar located in such frame, a crank and crank pin attached to said friction bar, a blade holder, and a crank and crankpin carried by said blade holder, 2. vertical link sl'otted and centrally ivoted, arranged .totransmit motion from t e friction bar to the blade holder, in combination with 'a bowed spring F. permanently attached to said blade holder having lightly held b the blocks A,,A, adapted to restore the b ade holder to a vertical po? sition.-

6. In a device, of the character described,

the combination of a frame. a frictionbar, and a blade holder'loosely 1' ounted in such frame, a strap, and a movable bar between its ends.

l I l the lnner sldes of sald s trap, and rollers pmoted In such frame, pro ndlng means "for the easy operatlon of sald atrap.

7. In a device of the character described the combination of a 1 ame, a friction bar pivotally mounted in sum frame, carrying a crank and a crank p.11, a blade bolder loosely mounted in said frune p1 vlded with an adjustable blade back and carrying a crank and crank pin, a lllllx slotted and pivoted, connecting the frictun bar and the )lude holder, a strap, and a movable bar be w on the parts of the strap, and. rods to as- 15 111 the freedom of motlon or". the strap, ut etantlally as herein specified.

In testunony whereof l atfix my signature mpresenoe of two mtuesses.

JOHN HEISSEN BERGER.

lfituesses:

F; A. CHICKERING, 7 y iUITIiU]: PAIELPS Mum. 

